<?php 

	$str = file_get_contents('https://www.lagou.com/');

	$preg = "/data-lg-tj-cid=\"\d{7}\">(.+)/";

	$c = preg_match_all ($preg, $str, $reslut);

	var_dump($c);

	var_dump($reslut);

	file_put_contents('./db.php', $reslut[0][1]);
















 ?>